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<h1>inet.h</h1><div class="fragment"><pre>00001 <span class="comment">/*</span>
00002 <span class="comment"> * Copyright (c) 2001, Swedish Institute of Computer Science.</span>
00003 <span class="comment"> * All rights reserved. </span>
00004 <span class="comment"> *</span>
00005 <span class="comment"> * Redistribution and use in source and binary forms, with or without </span>
00006 <span class="comment"> * modification, are permitted provided that the following conditions </span>
00007 <span class="comment"> * are met: </span>
00008 <span class="comment"> * 1. Redistributions of source code must retain the above copyright </span>
00009 <span class="comment"> * notice, this list of conditions and the following disclaimer. </span>
00010 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright </span>
00011 <span class="comment"> * notice, this list of conditions and the following disclaimer in the </span>
00012 <span class="comment"> * documentation and/or other materials provided with the distribution. </span>
00013 <span class="comment"> * 3. Neither the name of the Institute nor the names of its contributors </span>
00014 <span class="comment"> * may be used to endorse or promote products derived from this software </span>
00015 <span class="comment"> * without specific prior written permission. </span>
00016 <span class="comment"> *</span>
00017 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND </span>
00018 <span class="comment"> * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE </span>
00019 <span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE </span>
00020 <span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE </span>
00021 <span class="comment"> * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL </span>
00022 <span class="comment"> * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS </span>
00023 <span class="comment"> * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) </span>
00024 <span class="comment"> * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT </span>
00025 <span class="comment"> * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY </span>
00026 <span class="comment"> * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF </span>
00027 <span class="comment"> * SUCH DAMAGE. </span>
00028 <span class="comment"> *</span>
00029 <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span>
00030 <span class="comment"> * </span>
00031 <span class="comment"> * Author: Adam Dunkels <adam@sics.se></span>
00032 <span class="comment"> *</span>
00033 <span class="comment"> * $Id$</span>
00034 <span class="comment"> */</span>
00035 <span class="preprocessor">#ifndef __LWIP_INET_H__</span>
00036 <span class="preprocessor"></span><span class="preprocessor">#define __LWIP_INET_H__</span>
00037 <span class="preprocessor"></span>
00038 <span class="preprocessor">#include "net/arch.h"</span>
00039
00040 <span class="preprocessor">#include "net/opt.h"</span>
00041 <span class="preprocessor">#include "net/pbuf.h"</span>
00042 <span class="preprocessor">#include "net/ipv4/ip_addr.h"</span>
00043
00044 uInt16 inet_chksum(<span class="keywordtype">void</span> *dataptr, uInt16 len);
00045 uInt16 inet_chksum_pbuf(<span class="keyword">struct</span> pbuf *p);
00046 uInt16 inet_chksum_pseudo(<span class="keyword">struct</span> pbuf *p,
00047 <span class="keyword">struct</span> ip_addr *src, <span class="keyword">struct</span> ip_addr *dest,
00048 uInt8 proto, uInt16 proto_len);
00049
00050 <span class="preprocessor">#ifdef HTONS</span>
00051 <span class="preprocessor"></span><span class="preprocessor">#undef HTONS</span>
00052 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* HTONS */</span>
00053 <span class="preprocessor">#ifdef NTOHS</span>
00054 <span class="preprocessor"></span><span class="preprocessor">#undef NTOHS</span>
00055 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* NTOHS */</span>
00056 <span class="preprocessor">#ifdef HTONL</span>
00057 <span class="preprocessor"></span><span class="preprocessor">#undef HTONL</span>
00058 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* HTONL */</span>
00059 <span class="preprocessor">#ifdef NTOHL</span>
00060 <span class="preprocessor"></span><span class="preprocessor">#undef NTOHL</span>
00061 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* NTOHL */</span>
00062
00063 <span class="preprocessor">#ifndef HTONS</span>
00064 <span class="preprocessor"></span><span class="preprocessor"># if BYTE_ORDER == BIG_ENDIAN</span>
00065 <span class="preprocessor"></span><span class="preprocessor"># define HTONS(n) (n)</span>
00066 <span class="preprocessor"></span><span class="preprocessor"># define htons(n) HTONS(n)</span>
00067 <span class="preprocessor"></span><span class="preprocessor"># else </span><span class="comment">/* BYTE_ORDER == BIG_ENDIAN */</span>
00068 <span class="preprocessor"># define HTONS(n) (((((uInt16)(n) & 0xff)) << 8) | (((uInt16)(n) & 0xff00) >> 8))</span>
00069 <span class="preprocessor"></span><span class="preprocessor"># endif </span><span class="comment">/* BYTE_ORDER == BIG_ENDIAN */</span>
00070 <span class="preprocessor">#endif </span><span class="comment">/* HTONS */</span>
00071
00072 <span class="preprocessor">#ifdef NTOHS</span>
00073 <span class="preprocessor"></span><span class="preprocessor">#undef NTOHS</span>
00074 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* NTOHS */</span>
00075
00076 <span class="preprocessor">#ifdef ntohs</span>
00077 <span class="preprocessor"></span><span class="preprocessor">#undef ntohs</span>
00078 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* ntohs */</span>
00079
00080 <span class="preprocessor">#define NTOHS HTONS</span>
00081 <span class="preprocessor"></span><span class="preprocessor">#define ntohs htons</span>
00082 <span class="preprocessor"></span>
00083
00084 <span class="preprocessor">#ifndef HTONL</span>
00085 <span class="preprocessor"></span><span class="preprocessor"># if BYTE_ORDER == BIG_ENDIAN</span>
00086 <span class="preprocessor"></span><span class="preprocessor"># define HTONL(n) (n)</span>
00087 <span class="preprocessor"></span><span class="preprocessor"># define htonl(n) HTONL(n)</span>
00088 <span class="preprocessor"></span><span class="preprocessor"># else </span><span class="comment">/* BYTE_ORDER == BIG_ENDIAN */</span>
00089 <span class="preprocessor"># define HTONL(n) (((((uInt32)(n) & 0xff)) << 24) | \</span>
00090 <span class="preprocessor"> ((((uInt32)(n) & 0xff00)) << 8) | \</span>
00091 <span class="preprocessor"> ((((uInt32)(n) & 0xff0000)) >> 8) | \</span>
00092 <span class="preprocessor"> ((((uInt32)(n) & 0xff000000)) >> 24))</span>
00093 <span class="preprocessor"></span><span class="preprocessor"># endif </span><span class="comment">/* BYTE_ORDER == BIG_ENDIAN */</span>
00094 <span class="preprocessor">#endif </span><span class="comment">/* HTONL */</span>
00095
00096 <span class="preprocessor">#ifdef ntohl</span>
00097 <span class="preprocessor"></span><span class="preprocessor">#undef ntohl</span>
00098 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* ntohl */</span>
00099
00100 <span class="preprocessor">#ifdef NTOHL</span>
00101 <span class="preprocessor"></span><span class="preprocessor">#undef NTOHL</span>
00102 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* NTOHL */</span>
00103
00104 <span class="preprocessor">#define NTOHL HTONL</span>
00105 <span class="preprocessor"></span><span class="preprocessor">#define ntohl htonl</span>
00106 <span class="preprocessor"></span>
00107 <span class="preprocessor">#ifndef _MACHINE_ENDIAN_H_</span>
00108 <span class="preprocessor"></span><span class="preprocessor">#ifndef _NETINET_IN_H</span>
00109 <span class="preprocessor"></span><span class="preprocessor">#ifndef _LINUX_BYTEORDER_GENERIC_H</span>
00110 <span class="preprocessor"></span>
00111 <span class="preprocessor">#if BYTE_ORDER == LITTLE_ENDIAN</span>
00112 <span class="preprocessor"></span>uInt16 htons(uInt16 n);
00113 uInt32 htonl(uInt32 n);
00114 <span class="preprocessor">#else</span>
00115 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* BYTE_ORDER == LITTLE_ENDIAN */</span>
00116
00117 <span class="preprocessor">#endif </span><span class="comment">/* _LINUX_BYTEORDER_GENERIC_H */</span>
00118 <span class="preprocessor">#endif </span><span class="comment">/* _NETINET_IN_H */</span>
00119 <span class="preprocessor">#endif </span><span class="comment">/* _MACHINE_ENDIAN_H_ */</span>
00120
00121 <span class="preprocessor">#endif </span><span class="comment">/* __LWIP_INET_H__ */</span>
00122
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